Thermalogic™ Trellis Insulated Curtains with grommet tops feature an innovative design to provide energy efficiency as well as privacy through light control. Each cotton duck fabric panel features an insulating 100% acrylic back that blocks light and prevents outside air from creeping in through your windows so you stay warm in the winter and cool in the summer. Contemporary design features six antique grommets per panel. Set includes two 40"W panels. Machine washable. Imported.